Add gcc 2.8.0

.github/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: [2.6.0, 2.6.3, 2.6.3-psx, 2.7.0, 2.7.1, 2.7.2, 2.7.2.1, 2.7.2.2, 2.7.2.3, 2.8.1, 2.91.66, 2.95.2]
+        version: [2.6.0, 2.6.3, 2.6.3-psx, 2.7.0, 2.7.1, 2.7.2, 2.7.2.1, 2.7.2.2, 2.7.2.3, 2.8.0, 2.8.1, 2.91.66, 2.95.2]
     name: Build GCC ${{ matrix.version }}
     steps:
       - name: Clone repository

.gitignore

@@ -1,3 +1,4 @@
 build/
 build-*/
 gcc-*/
+sources/

gcc-2.8.0.Dockerfile

@@ -0,0 +1,34 @@
+FROM ubuntu:focal
+RUN apt-get update
+RUN apt-get install -y build-essential bison file gperf gcc gcc-multilib git wget
+
+ENV VERSION=2.8.0
+ENV GNUPATH=gnu
+
+WORKDIR /work
+RUN wget https://ftp.gnu.org/${GNUPATH}/gcc/gcc-${VERSION}.tar.gz
+RUN tar xzf gcc-${VERSION}.tar.gz
+
+WORKDIR /work/gcc-${VERSION}
+RUN ./configure \
+    --target=mips-linux-gnu \
+    --prefix=/opt/cross \
+    --with-endian-little \
+    --with-gnu-as \
+    --disable-gprof \
+    --disable-gdb \
+    --disable-werror \
+    --host=i386-pc-linux \
+    --build=i386-pc-linux
+
+COPY patches /work/patches
+RUN sed -i -- 's/include <varargs.h>/include <stdarg.h>/g' *.c
+RUN patch -u -p1 obstack.h -i ../patches/obstack-2.8.0.h.patch
+
+RUN make cpp cc1 xgcc cc1plus g++ CFLAGS="-std=gnu89 -m32 -static"
+RUN test -f cc1
+RUN file cc1
+
+COPY entrypoint.sh /work/
+RUN chmod +x /work/entrypoint.sh
+CMD [ "/work/entrypoint.sh" ]

patches/obstack-2.8.0.h.patch

@@ -0,0 +1,12 @@
+--- gcc-2.8.0/obstack.h	1997-10-27 00:14:42.000000000 +0000
++++ gcc-2.8.0/obstack_patched.h	2023-09-10 09:11:36.902206085 +0000
+@@ -424,7 +424,8 @@
+ ({ struct obstack *__o = (OBSTACK);					\
+    if (__o->next_free + sizeof (void *) > __o->chunk_limit)		\
+      _obstack_newchunk (__o, sizeof (void *));				\
+-   *((void **)__o->next_free)++ = ((void *)datum);			\
++   *((void **)__o->next_free) = ((void *)datum);			\
++   __o->next_free += sizeof (void *);			\
+    (void) 0; })
+
+ #define obstack_int_grow(OBSTACK,datum)					\